Endotracheal intubation device

ABSTRACT

A detachable stylet assembly for endotracheal intubation of a patient is disclosed. The stylet comprises an elongated tube defining: a longitudinal axis, a proximal end for detachably mounting the stylet to a hand grip, and a distal end for entering the trachea of the patient. The tube comprises an articulation section adjacent the distal end adapted to curve into the trachea upon actuation. An actuator housing is mounted on and adjacent to the proximal end of the tube. An actuating assembly is constructed inside the actuator housing having connection means for engaging the hand grip. A control wire is mounted within the actuator housing and connected to the actuating assembly. The control wire extends through the tube to the distal end of the tube and is adapted to curve the articulation section upon actuation. The hand grip comprises a base handle and a trigger for manual actuation of the actuator assembly. The trigger comprises finger grooves for convenient gripping. The base handle comprises a hand stop to prevent slippage.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of application Ser. No. 12/587,905,filed Oct. 15, 2009, which claims priority to U.S. ProvisionalApplication Nos. 61/208,083, filed Feb. 19, 2009 and 61/196,511, filedOct. 17, 2008, which are incorporated herein by reference in theirentirety.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

Not Applicable

BACKGROUND OF THE INVENTION

(1) Field of the Invention

The present invention relates generally to endotracheal intubationdevices, and more specifically to endotracheal devices having adetachable stylet and internal optics or a viewing device coupled to amonitor on an easy to use hand grip.

(2) Description of Related Art

U.S. Pat. No. 2,975,785 to Sheldon discloses an optical viewinginstrument comprising an endoscope sheath and a plurality of tubeelements arranged in an end to end relationship. One end of the sheathis secured to a control housing and has its interior end incommunication with the interior chamber of the housing. The controlhousing serves to support various control structures for the endoscopeincluding cables which are secured to a terminal tube element with theother ends of the cables secured and looped around a pair of pulleyspositioned within the chamber. The pulleys are turned by control knobsto flex a terminal section of the endoscope. The instrument has anoptical system with a flexible bundle of optically aligned transparentglass fibers. The transparent glass fibers transmit light from an objectwhich is illuminated by a pair of lamps in the end of the instrument sothat an image of the object can be seen at an eyepiece.

U.S. patents issued to Bazinet (U.S. Pat. No. 3,162,214), Takahashi etal. (U.S. Pat. No. 4,236,509) and Petruzzi (U.S. Pat. No. 4,669,172)disclose flexible tubular structures composed of coiled wire and/ortethered circular ring elements which provide for flexibility in tubularstructures. Petruzzi discloses a method for fabricating a flexible shaftcomprising a spiral cut member having an essentially uniform insidediameter and a tapered linear profile.

U.S. Pat. No. 4,846,153 to Berci discloses an intubating video endoscopewhich includes an elongated sheath member with a selectivelycontrollable bendable section housing an image forming optical system. Agenerally rigid section includes a control housing. An imagetransmitting optical system extends throughout the length of the sheathmember and terminates adjacent to the image forming system. A lighttransmitting system also extends throughout the length of the sheathmember to the image forming optical system, the rearward end of which isadapted to be operatively connected to a light source.

U.S. Pat. No. 4,877,016 issued to Kantor et al., discloses a videoendoscopic microscope which includes an integral optical element whichincludes a lens system and an objective lens that is recessedapproximately 15 mm from the distal end of the endoscope. An integralilluminating element includes a fiber optic bundle that terminates atthe distal end of the endoscope and illuminates the region of the distalend. The lens system terminated in a viewing port that is laterallydisplaced from the proximal end of the endoscope and which connects to ahigh resolution video camera that can display a magnified image on ahigh resolution video monitor, thus obviating the need for an unimpairedvisual path from the proximal to the distal end of the endoscope.

U.S. Pat. No. 4,949,716 issued to Chenoweth discloses a hand heldmedical device with a wide range of nasally placed airway tubes toafford better control of airway tubes. A soft flexible tube surroundinga flat spring has a braided wire which is pulled to control the flexingof the airway tube.

U.S. Pat. No. 6,539,942 to Schwartz et al., hereby incorporated byreference in its entirety, describes an endotracheal intubation devicehaving a series of interlinked, truncated ring-like elements disposedalong the distal portion of the tube and a handgrip for controlling thedegree of bend in the distal end of the device. An imaging device, suchas a nasopharyngoscope, can be inserted through the intubation device tovisualize the patient's vocal cords during the intubation procedure. Theendotracheal intubation device uses a scissors mechanism without pulleysto bend the distal end of the device.

U.S. Pat. No. 4,905,666 to Fukuda, U.S. Pat. No. 5,520,222 to Chikamaand JP 5,329,095 to Ogino teach bending devices which use pulleys orchain driven winding mechanisms which are controlled by cranks andknobs.

U.S. Patent Application 2006/0004258 to Sun et al. discloses animage-type intubation-aiding device comprising a small-size image sensorand a light source module both placed into an endotracheal tube to helpdoctors with quick intubation. Light from light emission devices in thelight source module passes through a transparent housing and isreflected by a target and then focused. The optical signal is convertedinto a digital or analog electric signal by the image sensor fordisplaying on a display device after processing. Doctors can thus behelped to quickly find the position of trachea, keep an appropriatedistance from a patient for reducing the possibility of infection, andlower the medical treatment cost. Disposable products are available toavoid the problem of infection. The intubation-aiding device can be usedas an electronic surgical image examination instrument for penetrationinto a body. Moreover, a light source with tunable wavelengths can beused to increase the spot ratio of nidus.

U.S. Patent Application 2007/0162095 to Kimmel et al. disclosesvisualization stylets and methods of use, in which the visualizationstylets include modular components that allow interchangeability ofimaging devices and lenses, and the use of forward-facing orlateral-facing lens orientations. Optionally, the lens may be focusedremotely. A reduced insertion profile is provided by configuring thecircuitry of the imaging device so that it is disposed substantiallyperpendicular to a plane of a pixel array of the imaging device.

While the related art teach endotracheal intubation devices, there stillexists a need for an improved endotracheal device having a convenientand effective hand grip, a detachable stylet to allow for easy andconvenient disinfection and an effective control wire mechanism.

OBJECTS

Therefore, it is an object of the present invention to provide animproved endotracheal intubation device having a curvable portioncontrolled by a mechanism that allows for direct griping of the triggerfor improved handling.

It is further an object of the present invention to provide anendotracheal intubation device having a detachable stylet that is easilyconnectable with a hand grip.

It is further an object of the present invention to provide anendotracheal intubation device having a hand grip with a more pronouncedstop and convenient gripping.

These and other objects will become increasingly apparent by referenceto the following description.

SUMMARY OF THE INVENTION

The present disclosure provides for a detachable stylet assembly adaptedfor endotracheal intubation of a patient comprising: (a) an elongatedtube as a stylet for the intubation defining: a longitudinal axis, aproximal end for detachably mounting the detachable stylet to a handgrip, and a distal end for entering the trachea of the patient; whereinthe tube comprises an articulation section adjacent the distal endadapted to curve into the trachea upon actuation; (b) an actuatorhousing mounted on and adjacent to the proximal end of the tubecomprising an actuating assembly having connection means for engagingthe hand grip; and (c) a control wire mounted within the actuatorhousing and connected to the actuating assembly, wherein the controlwire extends through the tube to the distal end of the tube and isadapted to curve the articulation section upon actuation. In anexemplary embodiment, the elongated tube comprises an LED mountedadjacent the distal end of the elongated tube and adapted to illuminatea pathway for the stylet to enter the trachea. In a further embodiment,a tube stop is mounted on the tube adjacent the actuator housingcomprising an adjustment knob and adapted to allow for mounting of anendotracheal tube over and around the elongated tube. Typically, thehand grip is detachably mounted to the actuator housing adjacent theproximal end of the elongated tube. In an even further embodiment, theactuator housing comprises an electrical connection mounted on theactuator housing and adapted to be coupled to a mating electricalconnection port in the hand grip. The assembly typically comprises aremovable soak cap mounted on the hand grip and adapted to be mounted onand cover the electrical connection port when the stylet is beingdisinfected in a liquid. The soak cap can be colored a distinguishingcolor to be identifiable from the other components of the hand grip. Theelectrical connection port can be coupled to a camera mounted adjacentthe distal end of the elongated tube.

The hand grip generally comprises: (i) a grip housing; (ii) a trigger asa pivotable lever extending from the housing towards the distal end ofthe elongated tube and away and nonparallel with respect to thelongitudinal axis; and (iii) a stationary handle as base for squeezingthe trigger towards the handle when engaged, the base extending towardsthe distal end and parallel with the elongated tube. The lever engagesthe actuating assembly through the connection means and is adapted tocause the control wire to curve when the trigger is squeezed. In anexemplary embodiment, the connection means is a stem protruding outsidethe actuator housing and connecting to a hole defined on an actuatorlinkage mounted in the grip housing which is engaged with the trigger.The stem typically extends perpendicular with respect to thelongitudinal axis out of the actuator housing. In a further embodiment,the hand grip comprises a display means pivotably mounted on the griphousing and electrically connected to the camera through the electricalconnection. The display means can be a LCD screen. In an even furtherembodiment, the stationary handle further comprises a stop substantiallycurved perpendicular to the base to provide a physical stop to a userwhen gripping the hand grip. The trigger can comprise finger grooves forconvenient gripping.

The present disclosure further provides for a hand grip adapted forendotracheal intubation with a detachable stylet comprising: (a) a griphousing defining a longitudinal axis extending from the grip housing;(b) a base handle essentially parallel with the longitudinal axis of thegrip housing; and (c) a lever as a trigger mounted in and extending fromthe grip housing, the lever extending away from the base handle andnonparallel with respect to the longitudinal axis. The grip housing isconfigured to allow for mounting of an actuator means for moving acontrol wire in an elongated tube as a stylet extending along thelongitudinal axis. The trigger is adapted to control movement of thecontrol wire through a connection in the actuator means when the triggeris squeezed. In an exemplary embodiment, the stationary handle furthercomprises a stop substantially curved perpendicular to the base toprovide a physical stop to a user when gripping the hand grip. In afurther embodiment, the trigger comprises finger grooves for convenientgripping. The grip housing typically provides means for mounting adisplay monitor. The means for mounting a display monitor can be apivotable mounting member adapted to allow for pivoting of the displaymonitor of 180 degrees about a plane defined by the grip housing. Thedisplay monitor can be mounted on a swivel adapted to allow for radialmovement of the display about the swivel. In an even further embodiment,the hand grip comprises an electrical connection port coupled to amating electrical port on the actuator means adapted to provideelectrical connection between the display monitor and a camera mountedadjacent a distal end of the elongated tube. The grip housing canfurther comprise a video out port for optional external viewing. Theactuator means can be a detachable stylet adapted to be detachablymounted within the handgrip.

The present disclosure further provides for an endoscope devicecomprising: (a) an elongated tube as a stylet defining a longitudinalaxis mounted on an actuator housing and having a curvable portion at adistal end of the elongated tube comprised of: (i) a connecter membermounted in the housing; and (ii) a control wire attached to a proximalend that extends through the elongated tube along the longitudinal axisto the distal end of the elongated tube; and (b) a hand grip comprising:(i) a grip housing; (ii) a base handle extending from the grip housingparallel with the longitudinal axis of the elongated tube; (iii) a leveras a trigger extending from the grip housing and away and nonparallelwith respect to the base handle; (iv) an actuator linkage defining aconnector end connected to the connector member and a lever endconnected to the trigger, wherein the actuator linkage is mounted in thegrip housing and is adapted to translate linearly parallel to thelongitudinal axis when the trigger is squeezed towards the base handle;and (v) a tension spring abutting against the actuator linkage forreturning the actuator linkage to rest once the trigger is no longerbeing squeezed. The trigger is adapted to be squeezed causing thetrigger to pivot towards the base handle. The squeezing of the triggertranslates the actuator linkage linearly away from the elongated tubewhich causes the connector member and the control wire to translatelinearly away from the elongated tube and curve the curvable portion atthe distal end of the elongated tube. The actuator housing can bedetachable from the hand grip. In an exemplary embodiment, the devicefurther comprises a display monitor pivotably mounted on a pivot membermounted on the grip housing. The display monitor can be electricallyconnected through the grip housing and the actuator housing to a cameramounted adjacent the distal end of the elongated tube. The actuatorhousing typically comprises an electrical connector coupled to thecamera at the distal end of the elongated member and the grip housingcomprising a mating electrical port within the grip housing andconnected to the display monitor. The mounting of the actuator housingto the hand grip connects the electrical connector of the actuatorhousing to the mating electrical port of the grip housing. In aparticularly embodiment, the actuator linkage slides linearly along apair of spaced apart guide posts mounted in the grip housing andpositioned in parallel with the longitudinal axis. In a furtherembodiment, the actuator linkage slides linearly along a guide postmounted in the grip housing and positioned in parallel with thelongitudinal axis. In an even further embodiment, the connector memberis a stem protruding outside the actuator housing and connecting to ahole defined on an actuator linkage mounted in the grip housing which isengaged with the trigger. The stem generally extends perpendicular withrespect to the longitudinal axis out of the actuator housing. In yet afurther embodiment, the stationary handle further comprises a stopsubstantially curved perpendicular to the base to provide a physicalstop to a user when gripping the hand grip. In yet an even furtherembodiment, the trigger comprises finger grooves for convenientgripping. The elongated tube can further comprise a plunger connected tothe connector member adapted to translate within a chamber along thelongitudinal axis and wherein the control wire is attached to theplunger at the proximal end. The plunger typically translates linearlyaway from the elongated tube causing the control wire to translatelinearly and curve the curvable portion at the distal end of theelongated tube when the trigger is squeezed.

The present disclosure further provides for a method of endotrachealintubation of a patient comprising the steps of: (a) providing adetachable stylet assembly mounted to a hand grip adapted forendotracheal intubation of a patient comprising: (i) an elongated tubeas a stylet for the intubation defining: a longitudinal axis, a proximalend for detachably mounting the detachable stylet to a hand grip, and adistal end for entering the trachea of the patient; wherein the tubecomprises an articulation section adjacent the distal end adapted tocurve into the trachea upon actuation; (ii) an actuator housing mountedon and adjacent to the proximal end of the tube comprising an actuatingassembly having connection means for engaging the hand grip; (iii) acontrol wire mounted within the actuator housing and connected to theactuating assembly, wherein the control wire extends through the tube tothe distal end of the tube and is adapted to curve the articulationsection upon actuation; (b) inserting the stylet into the trachea of thepatient; and (c) curving the articulation section to position a tubeinto the trachea of the patient.

The present disclosure further still provides for a method ofendotracheal intubation of a patient comprising the steps of: (a)providing a hand grip mounted to an actuator means comprising: (i) agrip housing defining a longitudinal axis extending from the griphousing; (ii) a base handle essentially parallel with the longitudinalaxis of the grip housing; (iii) a lever as a trigger mounted in andextending from the grip housing, the lever extending away from the basehandle and nonparallel with respect to the longitudinal axis; whereinthe grip housing is configured to allow for mounting of an actuatormeans for moving a control wire in an elongated tube as a styletextending along the longitudinal axis; and wherein the trigger isadapted to control movement of the control wire through a connection inthe actuator means when the trigger is squeezed; (b) inserting thestylet into the trachea of the patient; and (c) curving the control wirewith the trigger to position a tube into the trachea of the patient.

The present disclosure even further still provides for a method ofendotracheal intubation of a patient comprising the steps of: (a)providing an endoscope device comprising: (1) an elongated tube as astylet defining a longitudinal axis mounted on an actuator housing andhaving a curvable portion at a distal end of the elongated tubecomprised of a connecter member mounted in the housing and a controlwire attached to a proximal end that extends through the elongated tubealong the longitudinal axis to the distal end of the elongated tube; (2)a hand grip comprising: (i) a grip housing; (ii) a base handle extendingfrom the grip housing parallel with the longitudinal axis of theelongated tube; (iii) a lever as a trigger extending from the griphousing and away and nonparallel with respect to the base handle; (iv)an actuator linkage defining a connector end connected to the connectormember and a lever end connected to the trigger, wherein the actuatorlinkage is mounted in the grip housing and is adapted to translatelinearly parallel to the longitudinal axis when the trigger is squeezedtowards the base handle; and (v) a tension spring abutting against theactuator linkage for returning the actuator linkage to rest once thetrigger is no longer being squeezed; wherein the trigger is adapted tobe squeezed causing the trigger to pivot towards the base handle; andwherein the squeezing of the trigger translates the actuator linkagelinearly away from the elongated tube which causes the connector memberand the control wire to translate linearly away from the elongated tubeand curve the curvable portion at the distal end of the elongated tube;(b) inserting the stylet into the trachea of the patient; (c) curvingthe articulation section with the trigger to position a tube into thetrachea of the patient.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates an exemplary endotracheal intubation device with atrigger and hand grip in use on a patient by a medical professional.

FIG. 2 illustrates a side view of the device of FIG. 1.

FIGS. 3A-3B illustrate an exemplary detachable stylet.

FIG. 4A-4E illustrate various side views of the device from FIG. 1showing the display means in different orientations and an exemplarycamera mounted in the tip.

FIG. 5 illustrates a close-up view of the detachable stylet mounted inthe hand grip of FIGS. 3A and 3B.

FIG. 6 illustrates the opposite side view of FIG. 5 of the hand griphaving the detachable stylet mounted thereto.

FIG. 7 illustrates a trigger side view of the device of FIG. 1.

FIG. 8 illustrates a side view with the grip housing removed from thedevice of FIG. 1.

FIG. 9 illustrates an opposite side view of FIG. 8 with the internalcomponents exposed showing the actuator assembly.

FIG. 10 illustrates a close-up view of the actuator assembly inconnection with the trigger mechanism.

FIG. 11 illustrates then internal components of the device of FIG. 1with the retaining plate.

FIG. 12 illustrates the actuator assembly from the side of the styletengaged with the trigger mechanism.

FIG. 13 illustrates a close-up view of the actuator assembly of FIG. 12with the trigger removed.

FIG. 14 illustrates the view of FIG. 13 with the control wire andelongated tube removed.

FIG. 15 illustrates a trigger side view of the actuator assembly engagedwith the trigger mechanism with the grip housing removed.

FIG. 16 illustrates a trigger side view of FIG. 15 with the actuatorhousing removed.

FIG. 17 illustrates a trigger side view of FIG. 16 with the linkageremoved.

FIG. 18 illustrates an exemplary display means having a monitor andpower supply.

FIG. 19 illustrates the display means of FIG. 18 illustrating internalcomponents.

FIG. 20 illustrates an exemplary embodiment of an endotrachealintubation device having a hand grip with display means and triggerengaged with a stylet assembly.

FIG. 21 illustrates the device of FIG. 20 with the display means in arotated and adjusted orientation.

FIG. 22 illustrates the device of FIG. 21 with the display means in arotated, adjusted and swiveled orientation.

FIGS. 23A-23D illustrate an exemplary endotracheal intubation devicehaving an exemplary hand grip with a grooved trigger and a displaymonitor.

FIG. 24A illustrates a perspective view of an exemplary detachablestylet.

FIG. 24B illustrates a side view of the stylet of FIG. 24A showing theinternal components of the actuator assembly.

FIG. 24C illustrates a further side view of the stylet from FIG. 24Arotated 90° from the view of FIG. 24B.

FIG. 24D is a cross-section view A-A from FIG. 24B showing an exemplaryarticulation section.

FIG. 24E is a cross section view B-B from FIG. 24C showing an exemplarysoak cap mounted on the electrical connection.

FIG. 24F is a cross section view C-C from FIG. 24B showing an actuatingmechanism inside the actuator housing.

FIG. 24G illustrates a distal tip view of the stylet of FIG. 24A.

FIG. 25A illustrates a perspective view of an exemplary grip housingwith a monitor and trigger.

FIG. 25B illustrates a trigger side view of the grip housing of FIG.25A.

FIG. 25C illustrates a side view showing the mounting and pivoting ofthe monitor to the grip housing of FIG. 25A.

FIG. 26A is a cross-section view A-A of FIG. 25B.

FIG. 26B is a cross-section view B-B of FIG. 26A.

FIG. 26C is a cross-section view C-C of FIG. 26A.

FIG. 26D is a cross-section view D-D of FIG. 25C.

FIG. 27A illustrates a perspective view of an exemplary grip housingwithout the trigger connected.

FIG. 27B illustrates an exemplary trigger with finger grooves.

FIG. 28A-28C illustrate an exemplary linkage with a single opening shownin perspective (A) view, backbone side down (B) view, and backbone sideup (C) view.

DESCRIPTION OF PREFERRED EMBODIMENTS

All patents, patent applications, government publications, governmentregulations, and literature references cited in this specification arehereby incorporated herein by reference in their entirety. In case ofconflict, the present description, including definitions, will control.The following applications are incorporated by reference herein in theirentirety for all purposes: Ser. No. 11/230,392 filed Sep. 20, 2005, Ser.No. 11/514,486 filed Sep. 1, 2006, Ser. No. 11/820,117 filed Jun. 18,2007, Ser. No. 11/906,870 filed Oct. 4, 2007, Ser. No. 12/148,033 filedApr. 16, 2008, and Ser. No. 12/148,050 filed Apr. 16, 2008.

Referring to FIGS. 1-7, an exemplary endotracheal intubation device isshown having a hand grip 20 with a trigger 21 for convenientarticulation of an articulation section 13. FIG. 1 illustratesendotracheal intubation device 10 in use on a patient P. Device 10 isbeing operated by a medical professional M to access patient P's tracheaE. In an exemplary embodiment, device 10 includes a detachable styletassembly 11 which comprises an elongated tube 12. Stylet assembly 11 isadapted to connect with a hand grip 20. In FIG. 2, elongated tube 12defines: a longitudinal axis A-A, a proximal end 12A for detachablymounting the stylet to hand grip 20, and a distal end 12B for enteringthe trachea E of patient P. Tube 12 comprises an articulation section 13adjacent distal end 12B. Section 13 is adapted to curve into trachea Eupon actuation of trigger 21 from hand grip 20. As shown in FIG. 1,articulation section 13 is curved into trachea E of the patient since itis being actuated by the trigger 21 on hand grip 20. The hand grip 20comprises a trigger 21 that is squeezed by professional M to actuatesection 13. Mounted on tube 12 is a tube stop 24 comprising anadjustment knob 24A and adapted to allow for mounting of an endotrachealtube 25 over and around the elongated tube 12. In a particularembodiment, device 10 is used to insert and place endotracheal tube 25into the patient P to clear the trachea E and then device 10 issubsequently removed leaving endotracheal tube 25 in place for furtherprocedures to be performed.

Detachable stylet assembly 11, as shown detached from hand grip 20 andalone in FIGS. 3A and 3B, comprises an actuator housing 14. Housing 14defines a substantially rectangular cross section and encloses anactuating assembly 15, as shown in the various magnified and explodedviews of FIGS. 9-17 discussed in greater detail below. Actuator housing14 is mounted on and adjacent to proximal end 12A of tube 12. Actuatingassembly 15 comprises a connection means 16 for engaging hand grip 20.Connection means 16 extends out from the enclosure of housing 14 on anopposite side from where tube 12 extends out of housing 14. Connectionmeans 16 can be a stem that is operable to engage trigger mechanism 21of hand grip 20. This engagement occurs when stylet assembly 11 isconnected with hand grip 20. Actuator housing 14 includes a back plate17 for protecting internal components of actuator assembly 15 from theexternal environment. Back plate 17 includes an extension 17A that laysflush with hand grip 20 when stylet 11 is attached. This providesexternal protection for connection means 16.

Medical professional M typically stands at the head of patient P whenintubating. As tube 12 is inserted into the trachea E of patient P,medical professional P can squeeze trigger 21 which is connected throughconnection means 16 to actuator assembly 15. Actuator assembly 15connects to a control wire 18 (shown in FIGS. 9, 10, 12, 13, and 17).Control wire 18 is mounted within actuator housing 14 and connected tothe connection means 16. Control wire 18 extends through tube 12 todistal end 12B and is adapted to curve the articulation section 13 uponactuation. Actuation occurs when trigger 21 is squeezed. In an exemplaryembodiment, articulation section 13 is curvable via a vertebraeconfiguration or a Nitinol tube as described with respect to U.S. patentapplication Ser. No. 12/148,050 filed Apr. 16, 2008. While the elongatedtube 12 can be constructed of stainless steel, polymer or other sturdymaterial, in some preferred embodiments it is constructed of a shapememory alloy (SMA). Any shape memory alloy such as acopper-zinc-aluminum, copper-aluminum-nickel, and nickel-titanium (NiTi)alloys can be used, such as, but not limited to Nitinol. Thearticulation or curvable portion 13 of elongated tube 12 can beconstructed of a shape memory alloy such as Nitinol. The shape memoryalloy (SMA) of the articulation section 13 will flex when the trigger 21is squeezed, and then will return to its original conformation when thetrigger 21 is released due to the tendency of the SMA to spring back toa less curved conformation.

In an exemplary embodiment, elongated tube 12 comprises at least one LEDlight 19 mounted adjacent the distal end 12B of elongated tube 12 asshown in FIG. 4E. LED light 19 is adapted to illuminate a pathway forstylet 10 to enter the trachea E. FIG. 2 illustrates a side view ofdevice 10 with trigger 21 at rest and thus articulation section 13 in asubstantially straight configuration. LED light 19 is typically mountedin the tip 112.

In an exemplary embodiment as shown in FIGS. 1, 2, and 4A-4D hand grip20 comprises a display means 23. Display means 23 can be pivotablymounted on hand grip 20 to allow for rotation to a desired viewingposition. Display means 23 can be any viewing monitor such as an LCDscreen. As shown in FIG. 1, display means 23 pivots towards medicalprofessional M for better viewing. FIGS. 4C and 4D are side views ofdevice 10 with monitor 23 in opposite configurations illustrating thatthe monitor can rotate or pivot approximately 180 degrees. FIG. 4B showsthe trigger 21 and articulation section 13 in an actuated state oftrigger 21′ and articulation 13′, i.e., curved when trigger 21 issqueezed towards stationary handle 22 of handgrip 20 and represented indotted lines. As shown in FIG. 2 and FIG. 6, in an exemplary embodiment,display means 23 is connected to a base extension 23A which connects tohand grip 20 on pivot point 238. Pivot point 23B can be any means forproviding a desired pivot such as a screw or bolt. In a particularembodiment base extension 23A is constructed to define a substantiallytriangular geometry thus providing adequate support for the monitor andconvenient pivoting along pivot point 23B.

In an exemplary embodiment, detachable stylet 11 comprises an electricalconnection 26 illustrated in FIG. 3A. Electrical connection 26 providesa port and connection to a camera having a lens 28 (schematically shownin FIG. 4E) mounted in the tip 112. In a particular embodiment, thecamera is a CMOS chip having optics. Electrical connection 26 is adaptedto receive a mating connector mounted inside of hand grip 20. Connectingstylet 11 to handgrip 20 allows for connection of camera 28 to displaymeans 23 via electrical connection 26. The camera is connected toelectrical connection 26 through one or more wires that run through theinterior length of elongated tube 12. When connected or coupled to eachother, display means 23 can display a pathway through the trachea viathe camera. This provides for convenient steering and guidance for themedical professional to direct the tube into a desired location.

Typically, stylet 11 is disinfected in a disinfecting fluid prior touse. Submerging stylet 11 in a liquid for any period of time can damageany of the electrical components, including electrical connection port26 and the camera. Thus, in an exemplary embodiment, device 11 comprisesa soak cap 27. Soak cap 27 is adapted to protectively mount over andaround electrical connection port 26. Exposure to liquid issubstantially prevented when soak cap 27 is mounted over connection port26 thus allowing for convenient disinfection of stylet 11. If stylet 11is submerged in a disinfection liquid, the electrical components areprotected by soak cap 27. Typically, soak cap 27 is mounted on one sideof hand grip 20 as shown in FIG. 2. Soak cap 27 rests on the outersurface of hand grip 20 until it is needed to cover the electricalconnection 26 of stylet 11 as shown in FIG. 3A. Typically electricalconnection 26 faces perpendicular to axis A-A on interior face 17B ofhousing 14. In a particular embodiment, soak cap 27 lies flush with face17B when mounted over electrical connection 26.

FIGS. 5-7 illustrate magnified opposite side views and a trigger sideview of hand grip 20 having display means 23 and mounted to stylet 11.Actuator housing 14 forms an enclosure around the actuator assembly andproximal end of elongated tube 12. In a particular embodiment, backplate 17 is mounted onto housing 14 by several mounting features 29 suchas screws or bolts. Hand grip 20 comprises: (i) a grip housing 20′, (ii)a trigger 21 as a pivotable lever extending from housing 20′ towardsdistal end 12B of elongated tube 12 and away and nonparallel withrespect to longitudinal axis A-A; and (iii) a stationary handle 22 asbase for squeezing trigger 21 towards handle 22 when engaged. Basehandle 22 extends towards distal end 12B and parallel with respect toaxis A-A. Trigger 21 is mounted onto housing 20′ on a pivot feature 21C.

In an exemplary embodiment, trigger 21 and handle 22 each define acurving lip 21A and 22A at distal ends 21B and 22B, respectively. Lips21A and 22A serve as terminating ends of trigger 21 and handle 22 suchthat a user can conveniently feel where to properly place his hand whenusing device 10. Although shown as terminating ends, lips 21A and 22Acan be located anywhere along their respective structure since theirintention is to provide indication to a particular hand position. Lips21A and 22A also serve as structural stops to substantially deterslipping of the hand. Typically lips 21A and 22A face away from eachother.

FIG. 6 illustrates an opposite side view of FIG. 5 of hand grip 20 withdisplay means 23 mounted thereon. In a particular embodiment, displaymeans 23 is mounted on a pivotable extension 23A on a pivot point 23B.In a particular embodiment, a video-out port 23C is mounted on extension23A. Typically, port 23C is an RCA composite port adapted to allow forcoupling or connection to an external display means or monitor such as acomputer or LCD screen. Display means 23 can further comprise a powersource 23D such as a battery. Housing 20′ can be securely held togetherby a securing means 20″ such as a screw or bolt.

FIGS. 8-17 illustrate various exploded views of the internal componentsof both hand grip 20 and actuator assembly 15. FIG. 8 illustrates a sideview from the stylet 11 side of device 10 with the grip housing 20′removed. FIG. 9 illustrates device 10 with the grip housing 20′ andactuator housing 14 removed from the opposite side of FIG. 8. Trigger 21is connected to a lever member 121 at pivot feature 21C. Lever member121 extends substantially perpendicular to the axis A-A and defines anopening 122. In an exemplary embodiment, opening 122 defines an oblonggeometry to all for sliding of the lever member during squeezing, i.e.actuation, of the trigger 21.

Trigger 21 engages connector linkage 32 through opening 122 of levermember 121 by a pin 124. Connector linkage 32 includes a distal end 132and a proximal end 133. The distal end connects to trigger 21 through aconnection means, such as a pin, screw, or bolt, in opening 122. Asshown in FIG. 10, linkage 32 includes an elongated back bone 32′ thatextends along a longitudinal axis B-B which is parallel with axis A-A.Extending perpendicular to axis B-B are distal end 132 and proximal end133. Back bone 32′ defines a pair of guidance openings 233. Openings 233are substantially elongated ovals that receive guide pins 33. Guide pins33 are mounted on the inner surface of grip housing 20′ and extendthrough the openings 233. Pins 33 provide structural guidance to linkage32 during actuation. Typically, when trigger 21 is squeezed towards basehandle 22, lever member 121 pivots to apply force to linkage 32 at theconnection at distal end 132. Linkage 32 is connected to lever member121 through a pin 124 in opening 122. Linkage 32 translates along theA-A axis away from elongated tube 12. Guide pins 33 provide structuralsupport to linkage 32 and thus backbone 32′ translates along axis B-B. Acoil spring 31 is positioned between proximal end 133 of linkage 32 andsupport stop 30. The spring is operable to return linkage 32 and thustrigger 21 back to resting position when the force on the trigger isremoved.

FIGS. 9-14 illustrate the internal components of actuator assembly 15.Connection means 16 is part of actuator assembly 15. In a particularembodiment, actuator assembly 15 is constructed within actuator housing14 of detachable stylet 11. In a further embodiment, device 10 isconstructed as an entire assembly without the detachable feature.Connection means 16 can be any means to secure connection of actuatorassembly 15 to linkage 32 such as a stem, protruding pin or bulletshaped extension. Connection means 16 engages a hole or opening definedin proximal end 133 of linkage 32. Connection means is attached to aplunger 34 that slides within a chamber 35. Chamber 35 abuts against aseal 36 to prevent liquid contamination during actuation. Plunger 34 isconnected to control wire 18. During actuation, i.e., trigger 21 isbeing squeezed, lever 121 acts upon linkage 32 which translates awayfrom trigger 21. As linkage 32 compresses spring 31, it acts uponconnector means 16 which pulls plunger 34 to translate through chamber35. Plunger 34 pulls control wire 18 which then causes tube 12 to curveat the articulation section 13. This mechanism provides a user withcontrolled curving and movement through the squeezing of trigger 21.

FIGS. 11-14 illustrate device 10 having a retaining plate 37. Retainingplate 37 is mounted within hand grip 20 and provides structural supportfor electrical connection 26 and pivot point 23B. Mating electricalconnection 26′ is shown in FIG. 11 within retaining plate 37 and isadapted to engage electrical connection 26 mounted within actuatorhousing 14. Seal 36 abuts against seal support 38 which operates as astop for forming the seal during actuation. FIGS. 15-17 illustrate topviews of device 10 with various components removed to illustratecomponent configuration.

FIGS. 18-19 illustrate a front view of the display means 23. Displaymeans 23 can be any monitor having a screen 123. In a particularembodiment, monitor 123 is a LCD screen. Display means 23 includes apower source 23D such as a battery. In a particular embodiment, as shownin FIGS. 20-23, a device 210 is provided having hand grip 220, trigger221, and base handle 222. Hand grip 220 is adapted to attach to adetachable stylet 11 and function in the same manner as previouslydescribed with respect to hand grip 20 above. Hand grip 220 defines amonitor rotation slot 225 adapted to allow for rotating of display means223. Display means 223 is mounted on a swivel point 226 of a rotatingarm 224. Swivel point 226 allows for a user to position display means223 in a variety of desired orientations. The rotation through slot 225in combination with the swivel point 226 provides for convenientrepositioning of display means 223 for optimal viewing angles. FIGS. 21and 22 illustrate exemplary positions of display means 223 with respectto hand grip 220.

In an exemplary embodiment, the video signal from the display means isbroadcast wirelessly. The handle functions as a grounding plate for thedipole antenna of the wireless transmitter. The user can function as agrounding plate and thus facilitating clarity of the wireless signal tothe receiver.

FIGS. 23A-28C illustrate further particular exemplary embodiments ofendotracheal intubation devices with a stylet, hand grip, and displaymonitor according to the present disclosure. Like numerals are used todescribe like features with respect to the embodiments described inFIGS. 1-22. Any differences from those embodiments are described below.

FIGS. 23A-23D illustrate an exemplary endotracheal intubation device 10having a hand grip 20 with a trigger 21 for convenient articulation ofan articulation section 13. FIG. 23A illustrates a first side view ofendotracheal intubation device 10 showing a pivot mount 23A for monitor23. Monitor 23 is connected to grip housing 20 via pivot mount 23A.Pivot mount 23A allows for manual pivoting of monitor 23 about pivotpoint 23B. The pivot mount 23A is mounted on one side of grip housing20.

Device 10 can be operated by a medical professional to access patienttrachea or allow for viewing of the vocal chords and trachea. FIG. 23Billustrates a trigger side or bottom side view of device 10. FIG. 23Cillustrates a stylet side view showing the engagement of stylet assembly11 with grip housing 20. FIG. 23D illustrates a front view showingmonitor 23 and trigger 21 extending away and upwardly at an angle withrespect to monitor 23. Monitor 23 comprises a display means 123 and apower source 23D. Display means 123 can be any visual display technologysuch as a liquid crystal display (LCD). Typically, power source 23D iscomprised of lead acid or lithium ion batteries. In a particularembodiment, monitor 23 comprises a low battery light indicator 324,typically an LED. Monitor 23 is in electrical connection with stylet 11through electrical connection 26 (FIG. 24B). Electrical connection 26 iscoupled through electrical wires to a camera mounted in a tip portion112 of stylet 11. The camera comprises an external lens 28 shown in thedistal tip view of FIG. 24G. Typically lens 28 is mounted adjacent atleast one, but often two LEDs 19 to provide light in use. The cameraallows for the medical professional to view the pathway into the patientvia the monitor 123. This allows for more accurate tube 12 placement ofthe stylet assembly 11 and for avoiding damage to sensitive and crucialanatomy such as the vocal chords.

FIGS. 25A-25C illustrate hand grip 20 detached from stylet assembly 11.Grip 20 comprises a trigger 21 which pivots about a pivot pin 21C (FIG.25C). Grip 20 defines a pair of receiving holes 21D (FIG. 27A) forreceiving pin 21C. This allows for trigger 21 to pivot about pin 21Cwhen squeezed. A stand alone trigger 21 is shown in FIG. 27B. Trigger 21includes finger grooves 321 for easy and effective gripping. Hand grip20 includes a stationary handle 22 as a base. Base handle 22 extendsaway from housing 20 to provide a gripping means for a user. Typically,a medical professional can place his hand against base 22 while wrappinghis fingers around the pivotable trigger 21. Trigger 21 is connected tohousing 20 such that it retracts away from base 22 while at rest.

Trigger 21 is connected to hand grip 20 through pin 21C. Trigger 21comprises a lever member 121. Lever 121 extends at an angle from pivotpin 21C inside hand grip 20. A cam 122 is defined on lever 121 (See FIG.27B) which allows for connection to linkage 32 (FIG. 28A) through atranslating pin 124. Cam 122 receives pin 124 which connects to linkage32 at pin hole 323 (FIGS. 28A-28C). When trigger 21 is squeezed, pin 124moves within cam 122 and translates linkage 32 linearly towards monitor23 along axis B-B (FIG. 28B). Linkage 32 can also be referred to as abolt. A spring 31 (shown in cross section view A-A of housing 20 in FIG.26A) abuts against linkage 32 in a spring cavity 331. Typically spring31 is a coil spring and returns trigger 21 to its original rest positiononce a squeezing force is removed. Spring 31 abuts against a stop 30mounted within grip 20 (See FIG. 26A).

Base handle 22 comprises an upper stop 22C. Stop 22C extendsperpendicular to an axis defined by handle 22. Typically, stop 22C alsocurves slightly thereby substantially resembling a shark fin geometry asshown in the side view of FIG. 25C. The stop 22C is detectable to thetouch and slightly forms around the hand of the user's grip. The finconfiguration substantially prevents unintended slippage. Moreover, thestop 22C can serve as an anchor or abutment for the user to secure hisgrip while pulling on trigger 21.

In an exemplary embodiment, device 10 comprises a detachable styletassembly 11 as shown detached in FIGS. 24A-24C. Stylet 11 is comprisedof an elongated tube 12 extending from actuator housing 14. Stylet 11can also be referred to as a “working length” and is adapted to connectinto hand grip 20. Typically, stylet 11 snaps into place in hand grip 20but can also be secured by a screw 130 as shown in FIG. 25C. Whenmounted in grip 20, electrical connection 26 is coupled to a receivingsection in grip 20 and forms an electrical connection between the cameraand monitor 23.

FIG. 24A illustrates a perspective view of stylet 11. Stylet assembly 11is adapted to connect with a hand grip 20 as shown in FIG. 23C.Elongated tube 12 defines a proximal end 12A for detachably mounting thestylet to hand grip 20, and a distal end 12B for entering the trachea ofa patient. Tube 12 comprises an articulation section 13 adjacent distalend 12B. Section 13 is adapted to curve into a trachea upon actuation oftrigger 21 from hand grip 20. The hand grip 20 comprises a trigger 21that is squeezed by a professional to actuate section 13. Mounted ontube 12 is a tube stop 24 (FIGS. 24A-24C, 24F) comprising an adjustmentknob 24A and adapted to allow for adjustable mounting of an endotrachealtube 25 over and around the elongated tube 12. In a particularembodiment, device 10 is used to insert and place an endotracheal tubeinto the patient to clear the trachea and then device 10 is subsequentlyremoved leaving the endotracheal tube (not shown) in place for furtherprocedures to be performed.

Mounted on the same side of grip housing 20 is soak cap 27. Soak cap 27is threadedly mounted on grip housing 20 so it can be removedconveniently when needed. Soak cap 27 covers electrical connection 26(described below with respect to FIG. 24B) to prevent liquidcontamination and to keep electrical connection 26 dry duringdisinfection. Often components of device 10 are submerged in a cleaningsolution to disinfect components. Certain electrical components such aselectrical connection 26 must be covered and isolated from the liquid toprevent damage. Soak cap 27 can be screwed over electrical connection 26and is configured to prevent liquid intrusion and contact to connection26. During operation of device 10, soak cap 27 is mounted on the side ofhousing 20 as shown in FIG. 23A for use with the disinfection of thestylet assembly 11 (FIGS. 24A-24C). Mounting soak cap 27 on grip housing20 significantly prevents loss or misplacement of soak cap 27 when soakcap 27 is not in use. In an exemplary embodiment, soak cap 27 is made aunique and distinguishing color, such as orange to stand out from theother components. FIG. 24E illustrates cross section B-B of FIG. 24Cwith soak cap 27 mounted on and covering connection 26.

Detachable stylet assembly 11, as shown detached from hand grip 20 andalone in FIGS. 24A-24C and cross section views FIGS. 24D-24G, comprisesan actuator housing 14. Housing 14 defines a substantially rectangularcross section and encloses an actuating assembly 15. Actuator housing 14is mounted on and adjacent to proximal end 12A of tube 12. Actuatingassembly 15 comprises a connection means 16 (FIGS. 24B and 24F) forengaging hand grip 20. Connection means 16 extends out from theenclosure of housing 14 on an opposite side from where tube 12 extendsout of housing 14. Connection means 16 can be a stem that is operable toengage trigger mechanism 21 of hand grip 20. Stem 16 resembles a bulletshape and allows for mechanical engagement between the grip 20 (throughlinkage 32) and the articulation section 13. This engagement occurs whenstylet assembly 11 is connected with hand grip 20. Actuator housing 14includes a back plate 17 for protecting internal components of actuatorassembly 15 from the external environment. Back plate 17 includes anextension 17A that lays flush with hand grip 20 when stylet 11 isattached. This provides external protection for connection means 16.

A medical professional M typically stands at the head of a patient Pwhen intubating (shown in FIG. 1). As tube 12, with an endotrachealtube, is inserted into the trachea E of the patient P, the medicalprofessional M can squeeze trigger 21 which is connected to actuatorassembly 15 through linkage 32 and connection means 16. Actuatorassembly 15 connects to a control wire 18 as shown in FIG. 24B. Controlwire 18 is mounted within actuator housing 14 and connected to theconnection means 16. Control wire 18 extends through tube 12 to distalend 12B and is adapted to curve the articulation section 13 uponactuation. Actuation occurs when trigger 21 is squeezed. In an exemplaryembodiment, articulation section 13 is curvable via a vertebrae 213configuration as shown in FIG. 24D or a Nitinol tube as described withrespect to U.S. patent application Ser. No. 12/148,050 filed Apr. 16,2008 incorporated hereby in its entirety. Cross section A-A of section13 is shown in the exemplary embodiment of FIG. 24D illustrating thevertebrae 213 embodiment. Each vertebrae section 213 is adapted to allowfor section 13 to curve upon actuation.

While the elongated tube 12 is preferably constructed of a rigidstainless steel tube, a polymer or other sturdy material, in somepreferred embodiments can be used. The tube can be flexible or rigid.The actuating section 13 is preferably constructed of a shape memoryalloy (SMA). Any shape memory alloy such as a copper-zinc-aluminum,copper-aluminum-nickel, and nickel-titanium (NiTi) alloys can be used,such as, but not limited to Nitinol. The articulation or curvableportion 13 of elongated tube 12 can be constructed of a shape memoryalloy such as Nitinol with cuts to allow for articulation. The shapememory alloy (SMA) of the articulation section 13 flexes when thetrigger 21 is squeezed, and then will return to its originalconformation when the trigger 21 is released due to the tendency of theSMA to spring back to a less curved conformation. FIGS. 23A-23Cillustrate device 10 with trigger 21 at rest and thus articulationsection 13 in a substantially straight configuration.

In an exemplary embodiment, elongated tube 12 comprises at least one LEDlight 19 mounted adjacent the distal end 12B of elongated tube 12 asshown in FIG. 24G. LED light 19 is adapted to illuminate a pathway forstylet 10 to enter the trachea. LED light 19 is typically mounted in thetip 112 as shown in the distal tip view of FIG. 24G.

Monitor 23 can be pivotably mounted on hand grip 20 to allow forrotation to a desired viewing position. Monitor 23 can pivot towards amedical professional for better viewing. In an exemplary embodiment, themonitor can rotate or pivot approximately 180 degrees. As shown in FIGS.23A-23C and 12-14 monitor 23 is connected to a base extension 23A whichconnects to hand grip 20 on pivot point 23B. Pivot point 23B can be anymeans for providing a desired pivot such as a screw or bolt. In aparticular embodiment base extension 23A is constructed to define asubstantially triangular geometry thus providing adequate support forthe monitor and convenient pivoting along pivot point 23B.

Detachable stylet 11 comprises an electrical connection 26 illustratedin FIG. 24B. Electrical connection 26 extends outward from housing 14substantially perpendicular to a longitudinal axis defined by tube 12.Connection 26 engages an electrical receiving portion of grip housing 20to connect with monitor 23. This allows for connection to a camerahaving a lens 28 (shown in FIG. 24G) mounted in the tip 112. In aparticular embodiment, the camera is a CMOS chip having optics.Connecting stylet 11 to handgrip 20 allows for connection of the camerato monitor 23 via electrical connection 26. The camera is connected toelectrical connection 26 through one or more wires that run through theinterior length of elongated tube 12. When connected or coupled to eachother, monitor 23 can display a pathway through the trachea via thecamera. This provides for convenient steering and guidance for themedical professional to direct the tube 12 into a desired location.

Actuator housing 14 forms an enclosure around the actuator assembly 15and proximal end of elongated tube 12. In a particular embodiment, backplate 17 is mounted onto housing 14 by several mounting connectors 29such as screws or bolts.

FIGS. 25A-25C and 27A illustrate an exemplary hand grip 20. Hand grip 20comprises: (i) a grip housing 20′, (ii) the trigger 21 as a pivotablelever extending from housing 20′ towards distal end 12B of elongatedtube 12 and away and nonparallel with respect to longitudinal axis A-Aas shown in FIG. 23C; and (iii) a stationary handle 22 as base forsqueezing trigger 21 towards handle 22 when engaged. Base handle 22extends towards distal end 12B and parallel with respect to axis A-A.Trigger 21 is mounted onto housing 20′ on a pivot pin 21C.

In an exemplary embodiment, trigger 21 and handle 22 each define acurving lip 21A and 22A at distal ends 21B and 22B, respectively. Lips21A and 22A serve as terminating ends of trigger 21 and handle 22 suchthat a user can conveniently feel where to properly place his hand whenusing device 10. These lips 21A and 22A are also referred to as “stops”and typically lip 22A is substantially curved to prevent unintended handslipping while device 10 is in use. Although shown as terminating ends,lips 21A and 22A can be located anywhere along trigger 21 and handle 22since their intention is to provide indication to a particular handposition. Lips 21A and 22A also serve as structural stops tosubstantially deter slipping of the hand. Typically lips 21A and 22Aface away from each other and are at substantially right angles withrespect to trigger 21 and handle 22 respectively.

FIGS. 23A and 25C illustrate a side view of hand grip 20 with monitor 23mounted thereon. In a particular embodiment, monitor 23 is mounted on apivot mount 23A on a pivot point 23B. In a particular embodiment, avideo-out port 23C is mounted on mount 23A. Typically, port 23C is anRCA composite port adapted to allow for coupling or connection to anexternal display means or monitor such as a computer or LCD screen.Monitor 23 further comprises a power source 23D such as a battery.Housing 20′ can be securely held together by a securing means 130 suchas a screw or bolt.

FIGS. 24D-24G and 26A-26D illustrate various exploded views of theinternal components of both hand grip 20 and actuator assembly 15. FIGS.26A and 27B show trigger 21 and extending lever 121 defining a cam 122for receiving a translating pin 124. FIG. 26A is a cross section A-A ofFIG. 25B. Lever 121 extends substantially perpendicular to the axis ofhandle 22 and defines cam 122. In an exemplary embodiment, cam 122defines an oblong geometry to all for sliding of the lever member duringsqueezing, i.e. actuation, of the trigger 21. Pin 124 also connectstrigger 21 to linkage 32.

Trigger 21 engages connector linkage 32 (shown alone in FIGS. 28A, 28B,and 28C) through cam 122 of lever 121 by pin 124 shown in FIG. 26A.Connector linkage 32, shown in FIG. 26A and includes a distal end 132and a proximal end 133. The distal end connects to trigger 21 throughpin 124, in pin hole 323 of linkage 32. As shown in FIG. 28A, linkage 32includes an elongated back bone 32′ that extends along a longitudinalaxis B-B which is parallel with the axis of handle 22. Extendingperpendicular to axis B-B are distal end 132 and proximal end 133. Backbone 32′ defines an opening 233. Opening 233 defines a substantiallyelongated oval geometry that receives guide pin 33. As shown in FIG.26A, guide pin 33 is mounted on the inner surface of grip housing 20′and extends through the opening 233. Pin 33 provides structural guidanceto linkage 32 during actuation. Typically, when trigger 21 is squeezedtowards base handle 22, lever 121 pivots to apply force to linkage 32 atthe connection at distal end 132. Linkage 32 translates away fromelongated tube 12. Guide pin 33 provides structural support to linkage32 and thus backbone 32′ translates along axis B-B. A coil spring 31 ispositioned between proximal end 133 of linkage 32 and support stop 30.The spring is operable to return linkage 32 and thus trigger 21 back toresting position when the force on the trigger is removed.

Connection means 16 is part of actuator assembly 15. In a particularembodiment, actuator assembly 15 is constructed within actuator housing14 of detachable stylet 11. In a further embodiment, device 10 isconstructed as an entire assembly without the detachable feature.Connection means 16 can be any means to secure connection of actuatorassembly 15 to linkage 32 such as a stem, protruding pin or bulletshaped extension. Connection means 16 engages a hole 334 (FIG. 28A)defined in proximal end 133 of linkage 32. Connection means 16 isattached to a plunger 34 that slides within a chamber 35 (FIGS. 24C and24F). Chamber 35 abuts against a seal 36 to prevent liquid contaminationduring actuation. Plunger 34 is connected to control wire 18. Duringactuation, i.e., trigger 21 is being squeezed, lever 121 acts uponlinkage 32 which translates away from trigger 21. As linkage 32compresses spring 31, it acts upon connector means 16 which pullsplunger 34 to translate through chamber 35. Plunger 34 pulls controlwire 18 which then causes tube 12 to curve at the articulation section13. This mechanism provides a user with controlled curving and movementthrough the squeezing of trigger 21 of articulation section 13.

In an exemplary embodiment, the video signal from the monitor isbroadcast wirelessly. The handle functions as a grounding plate for thedipole antenna of the wireless transmitter. The user can function as agrounding plate and thus facilitating clarity of the wireless signal tothe receiver.

While the present invention is described herein with reference to theillustrated embodiments, it should be understood that the invention isnot limited hereto. Those having ordinary skill in the art and access tothe teachings herein will recognize additional modifications andembodiments within the scope thereof. Therefore, the present inventionis limited only by the claims attached herein.

We claim:
 1. A detachable stylet assembly adapted for endotrachealintubation of a patient comprising: (a) an elongated tube having alongitudinal axis, a proximal end for detachably mounting the detachablestylet to a hand grip, and a distal end for entering the trachea of thepatient; wherein the tube comprises an articulation section adjacent thedistal end adapted to curve into the trachea upon actuation; (b) anactuator housing mounted on and adjacent to the proximal end of thetube, the actuator housing enclosing an actuating assembly and having amechanical connector facilitating releaseable attachment to the handgrip; and (c) a control wire mounted within the actuator housing andconnected to the actuating assembly, wherein the control wire extendsthrough the tube to the distal end of the tube and is adapted to curvethe articulation section upon actuation.
 2. The assembly of claim 1wherein the elongated tube comprises an LED mounted adjacent the distalend of the elongated tube and adapted to illuminate a pathway for thestylet to enter the trachea.
 3. The assembly of claim 1 furthercomprising a tube stop mounted on the elongate tube adjacent theactuator housing comprising an adjustment knob and adapted to allowmounting of an endotracheal tube over and around the elongated tube. 4.The assembly of claim 1 further comprising the hand grip detachablymounted to the actuator housing adjacent the proximal end of theelongated tube.
 5. The assembly of claim 1 further comprising anelectrical connector mounted on the actuator housing and adapted toreceive a mating electrical connector mounted inside the hand grip. 6.The assembly of claim 5 further comprises a removable soak cap coveringthe electrical connection port when the stylet is being disinfected in aliquid.
 7. The assembly of claim 6 wherein the soak cap is colored adistinguishing color to be identifiable from the other components of thehand grip.
 8. The assembly of claim 5 wherein the electrical connectionport is coupled to a camera mounted adjacent the distal end of theelongated tube.
 9. The assembly of claim 8 wherein the hand gripcomprises: (i) a grip housing; (ii) a trigger as a pivotable leverextending from the housing towards the distal end of the elongated tubeand away and nonparallel with respect to the longitudinal axis; and(iii) a stationary handle as a base for squeezing the trigger towardsthe handle when engaged, the base extending towards the distal end andparallel with the elongated tube.
 10. The assembly of claim 9 whereinthe lever engages the actuating assembly through the connection meansand is adapted to cause the control wire to curve when the trigger issqueezed.
 11. The assembly of claim 1 wherein the mechanical connectorfacilitating releaseable attachment of the detachable stylet assembly tothe hand grip is a stem protruding from the actuator housing, the stemadapted to connect to a hole defined on an actuator linkage mounted inthe grip housing, the actuator linkage engaged with a trigger.
 12. Theassembly of claim 11, wherein the stem extends perpendicularly withrespect to the longitudinal axis of the actuator housing.
 13. Theassembly of claim 10 wherein the hand grip comprises a display meanspivotably mounted on the grip housing and electrically connected to thecamera through the electrical connection.
 14. The assembly of claim 13wherein the display means is a LCD screen.
 15. The assembly of claim 9wherein the stationary handle further comprises a stop to provide aphysical stop to a user when gripping the hand grip.
 16. The assembly ofclaim 15 wherein the trigger comprises finger grooves for convenientgripping.